Black holes are some of the most mysterious objects in the universe, but they aren’t always silent. When two black holes are ...

Whether space-time exists should neither be controversial nor even conceptually challenging, given the definitions of “space-time,” “events” and “instants.” The idea that space-time exists is no more ...

Oftentimes, we think of space as an endless, mostly empty vacuum, a silent backdrop where planets, stars, and galaxies play out their dance. We also think of time as something separate, a steady ...

Could the route to the stars be paved not by impossible physics, but by spacetime itself? A new warp drive model has been ...

(Philipp Tur/iStock/Getty Images Plus) Right on the brink of black hole formation, spacetime can get downright peculiar. This is where familiar physics can become unnervingly strange, and ...